<!DOCTYPE html>
<html lang="en">

    <head>
        <meta charset="UTF-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>博客列表</title>
        <link rel="stylesheet" href="css/list.css">
        <link rel="stylesheet" href="css/blog_list.css">
        <style>
        .nav{
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 50px;
        }
        .container{
            padding-top: 80px;
            height: auto;
        }
        .container-right{
            width: auto;
        }
        .blog-pagnation-wrapper{
            height: 40px;
            margin: 16px 0;
            text-align: center;
        }
        .blog-pagnation-item{
            display: inline-block;
            padding: 8px;
            border: 1px solid #d0d0d5;
            color: #333;
        }
        .blog-pagnation-item:hover{
            background: #4e4eeb;
            color: #fff;
        }
        .blog-pagnation-item.actvie{
            background: #4e4eeb;
            color: #fff;
        }
    </style>
        <script src="js/jquery.min.js"></script>
        <script src="js/urltools.js"></script>
        <script src="js/logout.js"></script>
    </head>

    <body>
        <!-- 导航栏 -->
        <div class="nav">
            <img src="img/logo2.jpg" alt>
            <span class="title">我的博客系统</span>
            <!-- 用来占据中间位置 -->
            <span class="spacer"></span>
            <a href="login.html">登陆</a>
            <!-- <a href="blog_edit.html">写博客</a> -->
            <!-- <a href="#">注销</a> -->
        </div>
        <!-- 版心 -->
        <div class="container">
            <!-- 右侧内容详情 -->
            <div class="container-right" style="width: 100%;">
                <div id="artlist">
                </div>
                <hr>
                <div id="pageDiv" class="blog-pagnation-wrapper">
                    <button class="blog-pagnation-item" onclick="doFirst()">首页</button>
                    <button class="blog-pagnation-item" onclick="doPre()">上一页</button>
                    <button class="blog-pagnation-item" onclick="doNext()">下一页</button>
                    <button class="blog-pagnation-item" onclick="doLast()">末页</button>
                </div>
            </div>
        </div>
        <script>
            var pageIndex=1; // 当前页码（从1开始）
            var pageSize=2; // 每页显示最大条数
            var pageCount=1; // 总页数
            // 初始化参数
            function pageInit(){
                var paramPageIndex = getParamByKey("pageIndex");
                var paramPageSize = getParamByKey("pageSize");
                if(paramPageIndex!=null){
                    pageIndex = paramPageIndex;
                }
                if(paramPageSize!=null){
                    pageSize = paramPageSize;
                }
                doAjax();
            }
            pageInit();
            // 点击首页
            function doFirst(){
               if(pageIndex<=1){
                alert("抱歉：不能跳转啦，当前已经在首页！");
                return false;
               } 
               pageIndex=1;
               location.href = "blog_list.html?pageIndex="+pageIndex+"&pageSize="+pageSize;
            }
            // 点击“上一页”
            function doPre(){
                if(pageIndex<=1){
                    alert("抱歉：不能跳转啦，当前已经在首页！");
                    return false;
                }
                --pageIndex;
                location.href = "blog_list.html?pageIndex="+pageIndex+"&pageSize="+pageSize;
            }
            // 点击“下一页”
            function doNext(){
                if(pageIndex>=pageCount){
                    alert("抱歉：您已经在末页了，无需跳转！");
                    return false;
                }
                ++pageIndex;
                location.href = "blog_list.html?pageIndex="+pageIndex+"&pageSize="+pageSize;
            }
            // 点击“末页”
            function doLast(){
                if(pageIndex>=pageCount){
                    alert("抱歉：您已经在末页了，无需跳转！");
                    return false;
                }
                location.href = "blog_list.html?pageIndex="+pageCount+"&pageSize="+pageSize;
            }
            // 请求后端，得到数据并展示列表
            function doAjax(){
                // 1.得到当前页面的文章列表数据
                jQuery.ajax({
                    url:"/art/getlistbypage",
                    type:"POST",
                    data:{
                        "pageIndex":pageIndex,
                        "pageSize":pageSize
                    },
                    success:function(res){
                        if(res.code==200 && res.data.length>0){
                            // 从后端查询到数据，进行列表拼接和展示
                            var artListHtml="";
                            for(var i=0;i<res.data.length;i++){
                                var item = res.data[i]; 
                                artListHtml +='<div class="blog">'; 
                                artListHtml +='<div class="title">'+item.title+'</div>';  
                                artListHtml +='<div class="date">'+item.createtime+'</div>';
                                artListHtml +='<div class="desc">'+item.content+'</div>';
                                artListHtml +='<a href="blog_content.html?id='+item.id+'" class="detail">查看全文&gt;&gt;</a>';
                                artListHtml +='</div>';
                            }
                            jQuery("#artlist").html(artListHtml);
                            jQuery("#pageDiv").show();
                        }else{
                            jQuery("#pageDiv").hide();
                            jQuery("#artlist").html("<h2 style='margin-left:20px;margin-top:10px;'>暂无文章！</h2>");
                        }
                    }
                });
                // 2.查询文章的总条数 -> 得出当前总页数
                jQuery.ajax({
                    url:"/art/getcount",
                    type:"POST",
                    data:{},
                    success:function(res){
                        if(res.code==200 && res.data>0){
                            // 计算总页数
                            pageCount = Math.ceil(res.data/pageSize);
                        }
                    }
                });
            }
        </script>
    </body>
</html>